Seasonal sedimentation of phytoplankton to the deep-sea benthos
摘要：
Until recently the deep sea was considered to be a particularly stable environment, free from seasonal variations. However, atmospheric storms may cause periodicity in deep-ocean currentsand nepheloid layerswhile seasonality in the particulate flux to the deep sea is known to occur in the Sargasso Seaand Panama Basin. Evidence is presented here of a similar seasonal pulse of detrital material to bathyal and abyssal depths in temperate latitudes; this material seems to be derived directly from the surface primary production and to sink rapidly to the deep-sea benthos. Considerable sedimentation occurs soon after the spring bloom and continues throughout the early summer. This process acts as a pathway for the descent of carbon from the euphotic zone, providing a periodic food source for the deep pelagic and benthic communities.
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DOI：
10.1038/302520a0
被引量：
年份：
1993
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